Chris... its alex from cetrified...guess what?> the flapperless toilet didnt work in the 10 inch rough on the project i am booked on!!!! bummer... so you guys need to tell people it may not work on all 10 inch roughins...you need to design the bowl to not stick out the rear so far...cut off like an inch off the porcelin in the rear and it would make this 10 inch rough....damn...oh well...alex

: Stacy,

: Check this report from the National Assoc of Home Builders.. This is the most current info on toilet performance.